Certainly there's not much point in just collecting information and not having the capability to do something to act on that information. Whether or not all of those responses have to be things that are managed directly by NATO is a question to be worked out.
I guess it depends on what we are talking about. If we're talking about Russian air incursions, then it's probably something that would be handled through NORAD. It would rely on a mixture of the air assets we already have and the ones that Americans can bring to bear. There's some room for coordination so that the two capabilities can complement one another.
If it's something else like pollution at sea, then totally different players and totally different kinds of assets would come into play.